Basic Electrical and Electronics Engineering: Unit IV: Digital Electronics
Boolean Logic Operation
A Boolean function is an algebraic expression formed using binary constants, binary variables and basic logical operation symbols.
BOOLEAN LOGIC OPERATION
A
Boolean function is an algebraic expression formed using binary constants,
binary variables and basic logical operation symbols. Basic logical operations
include the AND function, OR function and NOT function. A Boolean functions can
be converted into a logic diagram composed of the AND, OR and NOT gates.
Logical
AND Operations:
The
logical AND operation of two Boolean variables A and B, given as y = A.B. It is
represented by Table 4.16. The common symbol for this operation is the
multiplication (.).
It
perform binary multiplication. The input variables are A and B an output is y =
A.B, the output is zero for all cases, except when both A and B are logical 1.
Logical
OR Operation:
The
logical OR operation between two boolean A and B, given by y = A + B. It is
shown in the table-4.17 the OR operation on the variables A and B is logical 1
when A (or) B (or) both are logical 1. The common symbol used for logical
addition operation is plus (+).
Logical
complement (or) NOT operation:
The
logical complement converts the logical 1 to the logical 0 and vice versa. This
method is also called as NOT operation. The symbol used for this operation is a
bar over the function (or) variable example A. It is shown in Table 4.18.
Basic Electrical and Electronics Engineering: Unit IV: Digital Electronics : Tag: : - Boolean Logic Operation
Basic Electrical and Electronics Engineering: Unit IV: Digital Electronics
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